EP0905590B1

EP0905590B1 - Controlled device, controller, information control center, initialization-allowing communication system, and communication control system and medium

Info

Publication number: EP0905590B1
Application number: EP98117651A
Authority: EP
Inventors: Koji Iwamoto
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 1997-09-25
Filing date: 1998-09-17
Publication date: 2005-01-19
Anticipated expiration: 2018-09-17
Also published as: KR19990030117A; JP3980131B2; EP0905590A2; US7092769B2; DE69828670T2; DE69828670D1; US20030191543A1; KR100491339B1; US7043571B2; JPH11103309A; US6584364B1; US20030191542A1; EP0905590A3

Description

BACKGROUND OF THE INVENTION

1.Field of the Invention

The present invention relates to a method to control selectable devices in an environment, as a home, an a system to are the method.

2. Description of the Related Art

Generally, in the case of a system in which one device or more (hereafter, this or these may be merely referred to as a device or devices) and a controller for controlling the device or devices are connected to each other by any communication means and controlled by each other. Communication initialization is necessary in order to communicate with each other. The communication initialization represents setting the address number of each device in communication or the address number of the device of a communication counterpart to each device. Conventionally, the above setting has been manually and individually performed when starting a system. Operations of a conventional initialization-allowing communication system are described below by referring to the accompanying drawings.
FIG. 14 is a block diagram showing a conventional initialization-allowing communication system. The structure in FIG. 14 is constituted with a device 10 and a controller 50, the device 10 and the controller 50 are connected by a communication medium 20 through communication means 31, and they can communicate with each other. Moreover, the device 10 and controller 50 are provided with self-address setting-holding means 11 for setting and holding the addresses of their own and communication-counterpart-address setting-holding means 14 for setting and holding the address of a counterpart to be communicated with. Furthermore, the device 10 is provided with control means 15 and the controller 50 is provided with a button 12 for controlling the device 10 and control content generation means 13 for detecting that the button 12 is pressed, generating corresponding control contents, and sending the contents to the communication means 31 in addition to the control means 15.
Operations of the conventional initialization-allowing communication system having the above structure are described below.
For the device 10 and controller 50 to communicate with each other, it is necessary to set self-addresses of their own and the address of a communication counterpart. Therefore, in order to set the self-addresses of the device 10 and controller 50, a user first sets the self-addresses by using the self-address setting-holding means 11. For the addresses, an address range or the like is previously specified by communication rules. For example, it is necessary that each unit has the sole address determined in a system so that the sole address is an optional number between numbers 1 and 7 and there is no duplicate number. The user sets the self-address of the device 10 to number 1 by using the self-address setting-holding means 11 of the device 10 and the self-address of the controller 50 to number 7 by using the self-address setting-holding means 11 of the controller 50 in accordance with the above rules. The self-address of each unit is determined through the above operations. Then, the user sets the address of a counterpart with which each unit communicates. In this case, because the device 10 communicates with controller 50 and the controller 50 communicates with the device 10, the user sets the communication-counterpart address of the device 10 to number 7 by using communication-counterpart-address setting-holding means 14 of the device 10 and the communication-counterpart address of the controller 50 to number 1 by using the communication-counterpart-address setting-holding means 14 of the controller 50. The communication-counterpart address of each unit is determined through the above operations and thereafter, communication can be made. That is, when the user presses, for example, the button 12 indicating power-on" of the controller 50, the control content generation means 13 of the controller 50 detects that the button 12 is pressed, generates corresponding control contents, and sends the contents to the communication means 31. The communication means 31 transmits the above control contents from the address number 7 to the address number 1 in accordance with the contents in the self-address setting-holding means 11 and the communication-counterpart-address setting-holding means 14. The transmitted control contents reach the control means 15 via the communication means 31 of the device 10 through the communication medium 20 and the control contents are executed. That is, when the power-on" button is pressed, the power supply of the device 10 is turned on.
To individually control a plurality of devices 10 by one controller 50, it is necessary to specify a device to be controlled by using a control device selection switch 912 provided for the controller 50.
Therefore, to set addresses of air conditioners 1 and 2 as the above-described initialization, the control device selection switch 912 is first set to the position indicating the air conditioner 1, then a series of setting operations above described is performed to complete the address setting of the air conditioner 1. Similarly to the above, the control device selection switch 912 is set to the position indicating the air conditioner 2 and then, a series of setting operations described above is performed to complete address setting of the air conditioner 2.
As described above, the conventional initialization-allowing communication system realizes mutual communication by manually performing communication initialization.
Then, a conventional communication control system constituted with a device and a controller for controlling the device is described.
That is, in the case of the conventional communication control system, the contents for the controller to control the device are previously set in the controller. Operations of the conventional communication control system are described below by referring to FIG. 15.
FIG. 15 is a block diagram showing a conventional communication control system. The structure in FIG. 15 is constituted with a device 10 and a controller 50, in which the device 10 and the controller 50 are connected to each other by a communication medium 20 through communication means 31 of the device 10 and that of the controller 50 so that they can communicate with each other. Moreover, the device 10 is provided with communication means 15 and the controller 50 is provided with a button 12 for controlling the device 10, key input detection means 811 for detecting that the button 12 is pressed, and control content generation means 13 for generating the control contents corresponding to the key input detection means 811 and sending the contents to the communication means 31.
Operations of the conventional communication control system having the structure are described below.
When a user presses, for example, the button 12 of the controller 50 indicating power-on," the key input detection means 811 of the controller 50 detects that the button 12 is pressed and moreover, the control content generation means 13 generates control contents addressed to the device 10 corresponding to the control content generation means 13 and sends the contents to the communication means 31. The communication means 31 reaches the control means 15 via the communication means 31 of the device 10 through the communication medium 20 to execute the control contents. That is, when the power-on" button is pressed, the power supply of the device 10 is turned on.
. As described above, in the case of the conventional communication control system, control contents corresponding to the case in which a button is pressed is previously set to control content generation means in a controller and thereby, a device can be controlled.
In the case of a conventional initialization-allowing communication system, however, it is necessary to manually perform the above setting as initialization before starting communication. Because the above setting operation requires the knowledge of address setting, the operation can be performed only by a person skilled to a certain extent. Therefore, a person in charge of setting work is necessary to set this type of system and therefore, this type of system is not preferable from the viewpoint of cost and man-hour. Moreover, because it is normally difficult for a housewife, old person, or child to perform the above setting, it is necessary to call a person in charge of work whenever extending or maintaining a device. Therefore, the system also has an aspect of preventing this type of communication device from spreading to homes.
In the case of a conventional communication control system, it is impossible to control the control contents which are not set to the above control content generation means. This has a problem that, when there are a device and a controller for controlling the device and thereafter, a new device having functions more advanced than those of the former device is purchased, the controller for controlling the former device cannot control the more advanced functions of the newly purchased device, that is, the controller cannot adapt to the changed devices.

SUMMARY OF THE INVENTION

It is an object of the present invention to provide a method and system which overcomes the about disadvantages.
This objet is solved by method claim 1 and system claim 2. Preferred embodiments are referred to in the subclaims 3-5.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram of the initialization-allowing communication system;
FIGS. 2(A) to 2(C) are illustrations showing the self-address format;
FIG. 3 is an image diagram showing the procedure;
FIG. 4 is a flowchart showing the procedure;
FIG. 5 is an illustration showing a display example by the display means;
FIG. 6 is a block diagram of the initialization-allowing communication system;
FIG. 7 is a block diagram of the initialization-allowing communication system;
FIG. 8 is a block diagram of the communication control system;
FIGS. 9(A) and 9(B) are illustrations showing the functional description;
FIGS. 10(A) and 10(B) are communication flowcharts
FIG. 11 is a display diagram;
FIG. 12 is a block diagram of the communication control system;
FIG. 13 is a block diagram;
FIG. 14 is a block diagram of a conventional initialization-allowing communication system; and
FIG. 15 is a block diagram of a conventional communication control system.

[Description of symbols]

10	Device (Controlled device)
11	Self-address setting-holding means
14	Communication-counterpart-address setting-holding
	means
12	Button
13	Control content generation means
15	Control means
20	Communication medium
31	Communication means
50	Controller
62	Communication-counterpart-address obtaining means
90	External communication medium
101	Functional description holding means
102	Functional description interpretation means
103	Mode switching means
104	Display means
110	Functional description development means
201	External communication function
200	External communication apparatus
202	System structure data base
300	External communication center
301	System structure holding means
400	Controller
401	Communication-counterpart-address obtaining-holding means
811	Key input detection means
901	Enciphering-deciphering means
903	Terminal certification means

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The preferred embodiments of the present invention are described below by referring to the accompanying drawings.
FIG. 1 is a block diagram showing the initialization-allowing communication system.
As shown in FIG. 1, this embodiment is mainly different from the conventional structure described by referring to FIG. 14 in that an external communication apparatus and an external communication center are added to the conventional structure. Therefore, in this embodiment, a component same as that of the conventional example is provided with the same symbol and its description is omitted. Moreover, a component having no description is assumed to be same as that of the conventional example.
As shown in FIG. 1, the initialization-allowing communication system of this embodiment makes it possible that a first device 70, a second device 80, a controller 400, and an external communication apparatus 200 are connected by a communication medium 20 so that they can communicate with each other. Moreover, the external communication apparatus 200 is connected with an external communication center 300 by an external communication medium 90 such as a public telephone line through external communication means 201. The external communication center 300 corresponding to an information control center of the present invention is provided with the external communication means 201 and a system structure data base 202 and is able to communicate with the external communication means 201 of a plurality of external communication apparatuses 200 through the external communication means 201. FIG. 1 is an illustration showing that the external communication center 300 connects with one of the certain external communication apparatuses 200. Moreover, the system structure data base 202 stores a plurality of pieces of combined information between the controller 400 and a controlled device (e.g. device 70) corresponding to the controller 400. In this case, the above combined information includes the corresponding information that a control object of the controller 400 is the device 70 and the information for the self-address of the device 70 (that is, the communication-counterpart address of the controller 400). These pieces of information are further described later while referring to FIG. 3.
Though internal structures of the devices 70 and 80 and the controller 400 are the same as those described for the conventional example in FIG. 14, the controller 400 of the first embodiment is provided with communication-counterpart-address obtaining-holding means 401 instead of the communication-counterpart-address setting-holding means 14 described for the conventional example and moreover, provided with system structure holding means 301 for holding a structure of the device, input means 411, and display means 412.
The communication-counterpart-address obtaining-holding means 401 is means for communicating with the external communication apparatus 200 through each communication means 31 provided for the controller 400 and external communication apparatus 200 and moreover, obtaining a communication-counterpart address from the system structure data base 202 in the external communication center 300 through the external communication means 201 provided for the external communication apparatus 200. Moreover, the external communication apparatus 200 is provided with the system structure holding means 301. In this case, a controlled device corresponds to the devices 70 and 80 and moreover, a controller corresponds to the controller 400.
Operations of the first embodiment of the initialization-allowing communication system of the constituted as described above are described below and moreover, operations of a controlled device, controller, and information control center of the are described below.
A user simultaneously or individually purchases the above devices 70 and 80, controller 400, and external communication apparatus 200 from a store (distributor) or the like. In this case, a self-address is set to each device by the supplier such as a store or manufacturing factory. Moreover, the information corresponding to a controller and a controlled device to be controlled by the controller is determined.
In this case, it is assumed that the self-address of the device purchased by the user is set by the distributor and moreover, the combined information including the above corresponding information is entered in the external communication center 300. Therefore, the above information about devices purchased by each user is sent to the external communication center 300 from each distributor. Moreover, the corresponding information which device should be determined as the control object of the controller 400 is set by a distributor while confirming the intention of a user.
In this case, it is assumed that a self-address is constituted with a house code showing the setting place of each device, a subsystem ID showing the ID of a subsystem in a set system, a device ID showing the type of a device, and a device number showing the number of a device. In this case, the telephone number of the above user or a member's number provided for the user by the distributor can be used as a house code.
FIG. 2(A) shows a self-address format. The air conditioner subsystem and the kitchen subsystem set in a house A are examples of subsystems.
Moreover, FIG. 3 shows the above image. The structure shown in FIG. 3 is the same as the structure in FIG. 1 above described and components provided with the same symbol has the function described for FIG. 1.
That is, in FIG. 3, an air conditioner subsystem 510 and a kitchen subsystem 520 are connected in addition to the external communication apparatus 200 and controller 400 as devices connected through the communication medium 20. The air conditioner subsystem 510 is constituted with a first indoor unit 500, a second indoor unit 501, and an outdoor unit 502 and the kitchen subsystem 520 is constituted with a refrigerator 503 and an electronic oven 504. All these devices are set in the house A600. Therefore, the above house code serves as a code showing the house A. The self-address of the first indoor unit 500 of the air conditioner subsystem 510 is shown in FIG. 2(B) and that of the refrigerator 503 of the kitchen subsystem 520 is shown in FIG. 2(C).
. Then, a distributor setting the self-address of each device sends these pieces of combined information to the external communication center 300. Then, these pieces of combined information are stored in the system structure data base 202.
That is, in the case of the example shown in FIG. 3, the contents are stored in the system structure data base 202, that the air conditioner subsystem 510 and kitchen subsystem 520 are connected to the house A in addition to the external communication apparatus 200 and controller 400, the air conditioner subsystem 510 is constituted with the first indoor unit 500, second indoor unit 501, and outdoor unit 502, and the kitchen subsystem 520 is constituted with the refrigerator 503 and electronic oven 504."
Then, operations until the user can control the arranged devices 70 and 80 by using the newly purchased controller 400 are mainly described below.
In FIG. 1, no information is held by the communication-counterpart-address obtaining-holding means 401 or system structure holding means 301 of the controller 400 immediately after purchasing the controller 400. Therefore, even if the button 12 of the controller 400 is pressed and the control content generation means 13 detecting that the button 12 is pressed generates such control contents as power-on," the structure of a device is not held by the system structure holding means 301 or a communication-counterpart address is not held by the communication-counterpart-address obtaining-holding means 401. Therefore, it is unknown at present to which device the control contents indicating power-on" are issued. Thus, it is impossible to send communication data to the communication means 31 and control any device.
To clarify a device to be controlled by the controller 400, the communication-counterpart-address obtaining-holding means 401 must inquire of the external communication apparatus 200 through the communication means 31 and communication medium 20 about a device to be controlled.
The opportunity for the inquiry is generated as shown below.
That is, when monitoring means for monitoring the change of current values of a power supply line is provided for the power supply line and a new device is set, the change of slight current values of the device is detected and the detection result is sent to the controller 400. The controller 400 receives the detection result, decides that a new device is set, and commands the communication-counterpart-address obtaining-holding means 401 to execute the above inquiry. In addition to the above method, it is also possible that the controller 400 regularly performs the above inquiry or the user gives the designation for start of an inquiry to the controller 400.
When necessary information is held by the system structure holding means 301 of the external communication apparatus 200, the external communication apparatus 200 provides the necessary information for the communication-counterpart-address obtaining-holding means 401. However, at this initial stage, necessary information is not generally held by the system structure holding means 301 of the external communication apparatus 200. Therefore, the external communication apparatus 200 is accessed to the system structure data base 202 through the external communication means 201, external communication medium 90, and external communication function 201 of the external communication center 300. Moreover, the external communication apparatus 200 refers to necessary information and provides information for the communication-counterpart-address obtaining-holding means 401 of the controller 400 and system structure holding means 301.
The above procedure is described below by referring to the flowchart shown in FIG. 4.
FIG. 4 is a flowchart showing the procedure for the controller 400 to correctly perform control when necessary information is provided for the communication-counterpart-address obtaining-holding means 401 and system structure holding means 301.
That is, as shown in FIG. 4, the communication-counterpart-address obtaining-holding means 401 of the controller 400 checks if the information for a communication-counterpart address is present in the system structure holding means 301 of the controller 400 in step 600.
If necessary information is present as the result of the above processing in step 600, step 605 is started to set the communication-counterpart address and a control object can be controlled in step 606. The above processing is more specifically described below by referring to the structure shown in FIG. 3.
That is, as described above, at the initialization stage, if the fact that a control object of the controller 400 is the first indoor unit 500 of the air conditioner subsystem 510 and its self-address is held by the system structure holding means 301 of the controller 400 though these are conditions not normally present, step 600 is completed and step 605 is started to set the self-address of the first indoor unit to the communication-counterpart-address obtaining-holding means 401 as a communication-counterpart address in step 605 and control the address in step 606.
In this case, FIG. 4 is described again. Then, unless there is any necessary information in the system structure holding means 301 in step 600, an inquiry is sent to the external communication apparatus 200 in step 601.
When there is necessary information in the system structure holding means 301 of the external communication apparatus 200, the information is provided for the system structure holding means 301 of the controller 400 in step 604.
These processings are more specifically described below by referring to the structure in FIG. 3. That is, it is assumed that the following information is held by the system structure holding means 301 of the external communication apparatus 200 as the structure of a system having a house code of the house A. That is, it is assumed that the fact that the structure is constituted with the air conditioner subsystem 510 and the kitchen subsystem 520, the air conditioner subsystem 510 is constituted with the first indoor unit 500, second indoor unit 501, and outdoor unit 502, the kitchen subsystem 520 is constituted with the refrigerator 503 and electronic oven 504, and moreover the control object of the controller 400 is the first indoor unit 500 of the air conditioner subsystem 510 and the self-address of the first indoor unit 500 are held as the information for the structure of the system of the house A. In this case, the fact that the control object of the controller 400 is the first indoor unit 500 of the air conditioner subsystem 510 and information about the self-address of the first indoor unit 500" are provided for the controller 400 as necessary information out of the system structure information in step 604, and hereafter similarly to the above mentioned, the self-address of the first indoor unit 500 is set to the communication-counterpart-address obtaining-holding means 401 in step 605, and the means 401 is controlled in step 606.
In this case, unless the above-described information is found in the system structure holding means 301 of the external communication apparatus 200 in step 602, necessary information is provided from the system structure data base 202 of the external communication center 300 in step 603 to perform control in accordance with the procedure same as the above described. The initialization stage corresponds to the above case.
The processing in the above case is more specifically described below by referring to FIG. 3. That is, system structure information concerned with not only the house code of the house A but also all house codes is stored in the system structure data base 202 of the external communication center 300 as described above. Therefore, when transmission of the above corresponding information is requested to the external communication center 300 from the controller 400, the external communication apparatus 200 retrieves and extracts only the information concerned with the house code of the house A out of the corresponding information by using the self-address (already set by a distributor) of the controller serving as a request source attached to the transmission request.
Thus, at the initialization stage, it is possible to finally know a communication-counterpart address by successively following up necessary information even if the communication-counterpart address is not set to the controller 400 and make the controller 400 obtain and hold a device which is the control object of the controller 400.
The above description shows a case of setting a communication-counterpart address to the controller 400 without using the input means 411 or display means 412. Then, a case of using these means is described below by referring to FIG. 5. FIG. 5 shows a display state when selecting a control object.
That is, in this case, though slightly different from the above-described cases, it is also possible to make the controller 400 shown in FIG. 1 display the system structure information on the display means 412 and moreover, select an object to be controlled by the controller 400 by using the input means 411.
In FIG. 5, a selection-allowing list is displayed so as to show that there are an air-conditioner indoor unit 1 and an air-conditioner indoor unit 2 as devices, which can be controlled by the controller 400. Therefore, the example in FIG. 5 is different from the above example in situation setting. That is, in the case of the above example, when purchasing a controller and each device, corresponding information showing which device is to be controlled is determined by a distributor and thereafter, the information is used without changing it. In this case, however, the air-conditioner indoor units 1 and 2 which can be controlled by the controller 400 are temporarily determined as the above corresponding information and thereafter, a user can select a device to be actually controlled by the user out of the units.
However, also in FIG. 5, the point that only the air-conditioner indoor unit 1 is made into the control object of the controller 400 is the same as the above example. Therefore, in FIG. 5, a state is displayed in which only the air-conditioner indoor unit 1 is selected through the operation of the input means 411 by a user. In this case, the selection-allowing list represents that it is a list of devices whose power supplies can be turned on by pressing the button 1 of the controller 400 as understood from the indication of button 1 power-on" in FIG. 5. Moreover, by displaying individual specific setting place such as a living room or bedroom at the right side of the indication of the air-conditioner indoor unit 1 or 2 in the selection-allowing list, discrimination is more easily made. However, it is necessary to determine the setting-place information by the distributor when purchasing each device and set the information as a part of self-address information.
The above processing is specifically performed in the above step 605.
By performing the processing, when purchasing the air- conditioner units 1 and 2 from a distributor, the corresponding information showing which device is controlled by the controller 400 is temporarily set. However, it is possible to thereafter change the information.
However, when actually controlling a device after a communication-counterpart address is set to the controller 400, it is necessary for a user to input the control device selection information showing which device is controlled from now to the controller 400. The control device selection information can be easily input by setting the mode for inputting the control device selection information and thereafter, using the input means 411 and display means 412 described for FIGS. 1 and 5. However, as already described, a device to be controlled by the controller 400 is only the air-conditioner indoor unit 1. Therefore, in this case, display contents of the display means 412 are different from those in FIG. 5 and thus, only the air-conditioner indoor unit 1 is displayed as an air conditioner. Of course, it is needless to say that the air-conditioner indoor units 1 and 2 can be displayed as devices to be controlled when not only the unit 1 but also the unit 2 are entered in the controller 400.
Thus, according to this embodiment, it is possible to constitute the self-address of each device with a house code showing a setting place, a system ID showing the ID of a subsystem in a set system, a device ID showing the type of a device, and a device number showing a device number, set the self-address when shipping or selling each device, and store it in the system structure data base of an external communication center. Moreover, it is possible to provide system structure holding means for an external communication apparatus and a controller, set and hold necessary information to and in communication-counterpart-address obtaining-holding means when the necessary information is present in system structure holding means in a controller and finally obtain the data concerned from the system structure data base of the external communication center by successively performing inquiries when the necessary information is not present in the system structure holding means. Therefore, a user can simply perform communication initialization. Furthermore, by using the above structure, it is possible to provide an initialization-allowing communication system having a simple structure because it is enough for each system structure holding means to hold only the information necessary for each system structure holding means.
Furthermore, by making it possible to update the system structure data base of the external communication center by accessing the data base from the external communication function and change the system structure data base from a place other than the external communication center, it is possible to update the system structure data base from any place through the remote control without updating the system structure data base in the external communication center each time.
Furthermore, because combined information includes corresponding information and self-address information in the case of the above embodiment, a case is described in which a self-address is provided with a house code for distinguishing between houses of users. However, it is also possible to use an ID uniquely provided for each controller to distinguish between a controller and a device to be controlled by the controller. Moreover, in this case, when it is possible to distinguish between devices to be controlled in accordance with specific information for the setting place of each device such as a living room or bedroom, it is possible to realize the combined information of the present information by using the information corresponding between the ID unique to each controller and the above-mentioned specific-setting-place information. In short, the combined information present invention can use any information as long as the information shows how a controller and a device to be controlled by the controller correspond to each other.
Furthermore, a request for transmitting combined information is described as an inquiry about a device to be controlled in the case of the above embodiment. As the opportunity for executing the transmission request, a case is described in which monitoring means is set to a power supply line. Moreover, when a newly set device communicates that the device is set to a controller, it is also possible for the controller to transmit the above transmission request by making the communication an occasion. Furthermore, in this case, it is possible for the device to directly transmit the transmission request to the external communication center 300. Furthermore, it is possible for a distributor to airectly transmit the transmission request to the external communication center 300. Furthermore, it is possible for the external communication center 300 to transmit combined information to a controller at a predetermined timing regardless of presence or absence of the transmission request from an external unit.
FIG. 6 is a block diagram showing the initialization-allowing communication system.
This embodiment is constituted by adding enciphering-deciphering means for enciphering and deciphering communication contents on the external communication medium of this embodiment into the external communication apparatus and external communication center
FIG. 6 is an illustration showing a structure constituted by adding enciphering-deciphering means 901 for enciphering and deciphering communication contents on the external communication medium 90 into the external communication apparatus 200 and external communication center 300 in FIG. 1.
Operations of an initialization-allowing communication system thus constituted are described below and simultaneously, operations of a controlled device, controller, and information control center are described.
Though the operation for finally knowing a communication counterpart by successively following up necessary information when no communication-counterpart address is set to the controller 400 is the same as the case of the first embodiment, the communication contents between the external communication apparatus 200 and the external communication center 300 are enciphered by the enciphering-deciphering means 901. Therefore, even if monitoring the external communication medium 90 and looking in communication contents, persons other than the person who knows how to decipher the communication contents cannot understand the communication contents.
Thus, it is possible to defend the privacy of a user and moreover secure the security because communication contents on an external communication medium is concealed.
FIG. 7 is a block diagram showing the initialization-allowing communication system of the
This embodiment is constituted by adding terminal certification means for certificating a terminal of the present invention to each apparatus and device connected to the communication medium 20 of the second embodiment.
FIG. 7 is an illustration showing a structure constituted by adding terminal certification means 903 for certificating that the means 903 is a proper communication counterpart when communicating with each other into the devices 70 and 80, controller 400 and external communication apparatus 200 in FIG. 6.
Communication on the communication medium 20 is formed only between terminals in which it is certificated that the terminal certification means 903 is a proper communication counterpart. Therefore, by using the terminal certification means 903, it is possible to prevent a malicious third party from improperly controlling a terminal on the communication medium 20 by using an improper terminal not provided with the terminal certification means 903. For terminal certification, various methods are considered including a method in which each terminal certification means 903 has a certain code and a new code obtained through a special operation between the certain code and a house code coincides with the certain code.
Thus, because the communication on a communication medium is formed only between proper terminals, radio-wave reaching range is large when using radio for a communication medium. Therefore, even when a malicious third party is present at a remote position, it is possible to secure the security including the fact that his improper operation can be prevented.
The same advantage can be obtained by preparing a medium such as a magnetic recording medium or optical disk recording a program for making a computer execute the functions (processing contents) of some or all of means (or steps) of any one of the above-described embodiments and using the medium and thereby executing the operations same as the above.
Communication initialization can be automatically performed without participation of a user by system structure holding means in a controller, and communication-counterpart-address setting-holding means for setting and holding the address of a counterpart to be communication-controlled obtained from the information concerned with the system structure.
Moreover, by adding an external communication apparatus provided with system structure holding means for holding the information concerned with the system structure of the entire setting place to the above structure, the present structure can receive only the information concerned with a system structure to be controlled by the system structure holding means in the external communication apparatus through the communication means when necessary information is not held by the system structure holding means in the controller.
Furthermore, by providing a system structure data base for holding the information concerned with a system structure related to all of the above house codes for the above structure and adding an external communication center connected with the external communication apparatus through an external communication medium or external communication means such as a public telephone line to the above structure, the present structure can receive only the information concerned with a system structure to be controlled from the system structure data base in the external communication center through the external communication means when necessary information is not held by the system structure holding means in the external communication apparatus. Therefore, the present structure has an advantage of making it possible to change objects to be controlled by a controller even if devices are added or changed
Furthermore, the present structure has advantages of making it possible to provide input means and display means for the controller, access the system structure holding means of the external communication apparatus and the system structure data base of the external communication center from the controller to make the display means display the data base, select a proper address by using the input means, and select or change the contents of the addresses of the system structure holding means of the controller and the communication-counterpart-address setting-holding means, and realize user customizing according to the taste of a user.
Furthermore, the present structure has advantages for making it possible to update the system structure data base of the external communication center by accessing the data base in accordance with the external communication function and change the system structure data base from a place other than the external communication center.
Furthermore, the present structure has the advantage of making it possible to prevent a third party from stealing a glance at the communication contents on the external communication medium by setting enciphering-deciphering means for enciphering the transmission contents on the external communication medium and deciphering enciphered reception contents into the external communication apparatus and the external communication center.
Furthermore, the present structure has the advantage of preventing an improper operation on the communication medium by setting terminal certification means for forming the communication on the communication medium only between proper terminals to the terminal on the communication medium.
Initialization of a communication-counterpart address in a communication system is described above. Then, embodiments of a communication control system are described below by referring to the accompanying drawings. Hereafter, setting of control function of each device by a controller after the initialization is completed is described.
FIG. 8 is a block diagram showing the communication control system.
This embodiment is constituted by adding the external communication apparatus and external communication center of this embodiment to the structure of the conventional example described by referring to FIG. 15. Therefore, in this embodiment, a component same as that of the conventional example is provided with the same symbol and its description is omitted. Moreover, a component having no description is assumed to be the same as that of the conventional example.
FIG. 8 is an illustration showing that a device 100 is connected with a controller 400 by a communication medium 20 so that they can communicate with each other. Internal structures of each device 100 and the controller 400 are as described for the conventional example by referring to FIG. 15 except for the following.
That is, functional description interpretation means 102 for interpreting a format statement describing functions of the device 100 and setting the contents of the statement to the control content generation means 13, mode switching means 103 for making the functional description interpretation means 102 work, and display means 104 for displaying control contents of the button 12 are added to the controller 400 of the fourth embodiment.
Moreover, functional description holding means 101 in which the format statement describing functions of the device 100 are held is added to the device 100. In this case, a controlled device of the present invention corresponds to the device 100 and a controller of the present invention corresponds to the controller 400.
The functional description holding means 101 of the device 100 holds functions of the device 100 and their control contents and method in the form of a functional description format statement in which the control contents and method are classified into an operation rule for specifying a header and functional operation, a control attribute for specifying the attribute of a button for controlling functions, and an operation condition for functions to operate and described.
FIG. 9(A) shows the form of the format statement. The following are the functions power-on" and power-off" among the functions of the device 100 described in the form of the format statement. That is, the operation rule for power-on" shows that Functions when the button 1 is pressed. Definition of function is to set the output port 1 to logic '1'." The control attribute shows that the size of the button 1 is 7 points, the color is blue, and the icon is POWER.ICO." The operation condition shows that controllable by a body and a remote controller. When power supply is turned on, report to the controller 400." The operation rule for power-off" shows that Functions when the button 2 is pressed. Definition of function is to set the output port 1 to logic '0'." The control attribute shows that the size of the button 2 is 7 points, the color is red, and the icon is POWER2. ICO." The operation condition shows that Controllable by a body and a remote controller. When power supply is turned off, report to the controller 400." FIG. 9(B) shows the above states.
It is assumed that the information for specifying a communication counterpart such as the communication-counterpart address of the device 100 to be controlled by the controller 400 is already held by the memory of the controller 400. Of course, it is possible for a user or a person in charge of work to set the information by a conventional method.
Thus, because control contents are not set to the control content generation means 13 yet when setting of a communication-counterpart address is completed, the message no setting" is displayed on the display means 104 for displaying control contents by the button 12. FIG. 10(A) shows the above state.
Therefore, the user then makes the functional description interpretation means 102 function by using the mode switching means 103 of the controller 400. The functional description interpretation means 102 sends the transmission request for the format statement of functional description previously held by the device 100 to the device 100 through the communication means 31 and communication medium 20.
When the functional description holding means 101 of the device 100 receives the transmission request through the communication means 31, it transmits the held format statement of functional description to the controller 400 through the communication means 31. The functional description interpretation means 102 of the controller 400 receives the format statement through the communication medium 20 and communication means 31, interprets the contents, and sets the contents to the control content generation means 13 and also changes the display contents of the display means 104 in accordance with the above contents. FIG. 10(B) shows the display contents after changed.
When the button 12 of the controller 400 is pressed after set as described above, control corresponding to the fact that the button 12 is pressed is executed in accordance with the contents of the control content generation means 13. The above procedure is shown by the communication flowchart of the communication medium 20 in FIG. 11.
Therefore, it is possible to change the control contents of the controller later even if devices are changed by describing operations of a device in the form of a functional description format statement classified into a header, operation rule for specifying functional operation, control attribute for specifying the attribute of a button for controlling functions, and operational condition for functions to operate and described, holding the format statement in the operation description-holding means of a device, transmitting the format statement to the operation description interpretation means. of a controller through a communication medium, and setting the format statement to control content generation means after interpreted
Moreover, communication media include such media as weak radio, specific small-power radio, PHS data communication, millimeter wave radio, infrared radiation in the case of radio communication and such media as optical fiber, coaxial cable, twisted pair wire, and electric lamp wire in the case of wire communication.
FIG. 12 is a block diagram showing the communication control system.
For the previous embodiment, a case is described in which control contents by a controller can be upgraded in accordance with upgrade of functions of a controlled device.
However, this embodiment purposes a controlled device whose control functions can be upgraded by upgrading the software for controlling the hardware of the device without changing hardware structures of the device. That is, in the case of this type of controlled device, by purchasing a controller having new control functions for the controller side, it is possible to upgrade the functions of the controlled device in software even if the same controlled device is used.
This embodiment is constituted by adding functional description development means 110 of the present invention to the device 200 of the fourth embodiment and the functional description holding means 101 to the controller 500 of the fourth embodiment.
As shown in FIG. 12, the device 200 is provided with the functional description development means 110 in addition to the functional description holding means 101. The functional description development means 110 has functions for developing the functional description format statement into control functions and adding the developed functions to the control means 15.
For example, it is assumed that two types of functional description format statements such as power-on" and power-off" are held by the functional description holding means 101 of the device 200. In this case, if a format statement describing a timer function for cutting power supply 30 min later" is newly added from the controller-500 side in accordance with a predetermined designation by a user, the functional description development means 110 develops the format statement into a function and adds the function to the control means 15. Moreover, as another example, to set room temperature to 25°C, it is assumed that a controller before upgraded only controls operations of the compressor of an air conditioner so that room temperature simply becomes 25°C as the software for realizing that room temperature is set to 25°C. However, it is assumed that an upgraded controller controls not only the operations of the compressor but also the air flow in accordance with the difference between set temperature and room temperature. In this case, by transferring the upgraded software for controlling room temperature from the controller to the air-conditioner device, it is possible to add a new function to the control means 15. Thus, only by replacing the controller with an upgraded controller, it is possible to control room temperature more comfortably though the same air-conditioner device is used.
To realize the above operation, a condition is necessary that the control means 15 originally has basic capacities for executing added functions and the operation can be realized by combining the basic capacities or, if a function is described only by software independently of hardware structure, the operation is realized by rewriting the software. Because software is generally stored in a storage medium such as a semiconductor memory or magnetic memory, the above operation can be easily realized by updating the data in the storage medium.
The above explanation is more specifically described below. That is, in the case of this embodiment, it is assumed that the following new functional description is held by the functional description holding means 101 cf the upgraded controller 500. The new functional description makes it possible to execute a new control function by updating software for the above-described device 200 but it is not held by the functional description holding means 101 of the device 200 at present.
Operations of this embodiment of a communication control system thus constituted are described below and simultaneously, operations of a controlled device and a controller are described.
A user sets the controller 500 to the functional description transfer mode by using the mode switching means 103 of the controller 500 and transfers the functional description of the functional description holding means 101 of the controller 500 to the functional description development means 110 of the device 200. The functional description is transferred from the functional description holding means 101 of the controller 500 to the functional description development means 110 through the communication means 31, the communication medium 20, and the communication means 31 of the device 200. The functional description development means 110 develops the functional description into a function and adds the function to the control means 15.
FIG. 13 shows a specific structure for realizing this embodiment. In the case of the structure shown in FIG. 13, the functional description holding means 101 of the device 200 is held by a nonvolatile memory 703, the control means 15 and functional description development means 110 are stored in a ROM 701 in the form of software, and a CPU 700 executes the means 15 and 110. The storage region and buffer region for actually executed operation results are constituted with a RAM 702. Hardware for actually realizing functions is realized by peripheral hardware 705 connected to an I/O port 704. However, by making the structure constant independently of devices, it is possible to realize a function not depending on hardware but depending on only software.
Thus, functions of a device can be updated by only the upgrade of version through communication without newly purchasing a device by providing functional description holding means for the controller, transferring the functional description holding means to the functional description development means provided for a device through communication, developing the functional description holding means into a function, and adding the function to control means as a new function.
As described above, it has an advantage of changing control contents by changing held contents because, for example, functional description holding means for describing and holding the function of a device is used.
Moreover, it has an advantage capable of uniformly describing and explaining functions because the function of a device held by the functional description holding means is described in the form of a functional description format statement which is classified into a header, an operation rule for specifying a functional operation, a control attribute for specifying the attribute of a button for controlling a function, and operational condition for a function to operate and described.
Furthermore, it has an advantage making it possible to change control contents by having functional description interpretation means for interpreting and setting the above functional description.
Furthermore, it has an advantage making it possible to update functions of a device by providing functional description development means for the device.
Furthermore, it has an advantage making it possible to change functions of a device remotely from a controller by providing the functional description holding means for the controller and transferring the functional description held by the functional description holding means to the functional description development means of the device.
As described above, it has an advantage that initialization can be simply performed compared to the conventional initialization.
Furthermore, it has an advantage that a controller can easily correspond to the change of devices or a controlled device can easily correspond to the change of controllers.
In the above embodiment, a case is described in which self-address information is included in combined information of the present invention. However, instead of the self-address information, it is permitted that, for example, one of pieces of the information showing the origin and the setting state of a device is included in the combined information. Moreover, among three pieces of the information including the self-address information, it is permitted that two optional pieces or all pieces of the information are included. In this case, it is necessary for the information showing the origin of a device to include the manufacturer's name of the device, type of the device (e.g. air conditioner, lighting equipment, or television), serial number of the device (manufacturing number), model name (product name) of the device, and functions of the device (e.g. in the case of an air conditioner, cooling, heating, and dehumidifying functions). Moreover, it is necessary for the information showing the setting state of a device to include the owner of the device (e.g. elder-brother's personal computer or younger-brother's CD player), setting place of the device (e.g. kitchen, living room, or bedroom), setting area of the device (e.g. the area of a room in which an air conditioner is set), and nickname of the device (e.g. air conditioner No. 1, air conditioner No. 2, or Mr. or Ms. XX' personal computer). Furthermore, it is necessary for the information showing the origin of a device and the information showing the setting state of a device to include a house code respectively.
Each element in all of the above-described embodiments may be implemented in software or in dedicated hardware.
Obviously, the operation of each step or means described in any of the above embodiments can be carried out by preparing and using a recording medium on which a program to cause a computer to execute all or part of each step or means described in any of the above embodiments is recorded.

Claims

A method to control selectable devices in an environment, as a home (600), by using a control station (200, 400) located in the environment, in which the control station includes the necessary data on the respective selectable devices and furthermore the control station is connected to an external information control center (300) by a communication link (90) and the information control center (300) includes the information among a plurality of devices and not only the selectable devices in the environment, comprising the following steps to add a new device or to update an existing device with different functionalities to the system:

a) the control station (200, 400) within the environment checks whether it already has sufficient information to control the added or updated devices, and if no sufficient information is available,

b) the control station (200, 400) sends a request to the external information control center (300) to obtain the necessary control information.
A system to control selectable devices in an environment being adapted to use the method according to claim 1 including:

a plurality of selectable and controllable devices (500, 501, 502, 503, 504) within the environment,

a control station (200, 400) within the environment to control said devices,

an external information control center (300) being connected to the control station by a communication link (90).
The system according to claim 2 wherein the external information control center not only includes data on specific devices but also includes personal data on which devices or types of devices are installed in which environments.
The system according to claims 2 or 3, wherein the data on the said communication link (90) are sent encrypted .
The system according to any of claims 1 to 4, wherein the control station within the environment includes a hand held telecontroller (400) with display and a fixed communication station (200), the fixed communication station (200) being adapted to receive instructions from the hand held telecontroller (400) controlling the devices (500, 501, 502, 503, 504) and being connected to the communication link (90).